.acg_bg {
    background: url('../images/bg.jpg');
    width: 1141px;
    height: 631px;
    margin: 0 auto;
    position: relative;
}

.title {
    font-family: '微软雅黑';
    font-size: 50px;
    position: absolute;
    top: 5px;
    left: 130px;
}

.author {
    font-family: 'Times New Roman', Times, serif;
    font-size: 18px;
    color: white;
    position: absolute;
    top: 567px;
    left: 900px;
}

.acg_bg .peach {
    background: url(../images/peach.png);
    width: 90px;
    height: 110px;
    position: absolute;
}

.acg_bg .peach1 {
    background-position: 0 0;
    top: 247px;
    left: 357px;
}

.acg_bg .peach2 {
    background-position: 0 -115px;
    top: 186px;
    left: 517px;
}

.acg_bg .peach3 {
    background-position: 0 -215px;
    top: 218px;
    left: 727px;
}

.acg_bg .peach4 {
    background-position: 0 -315px;
    top: 288px;
    left: 536px;
}

.acg_bg .peach5 {
    background-position: 0 -425px;
    top: 393px;
    left: 687px;
}

.acg_bg .peach6 {
    background-position: 0 -530px;
    top: 379px;
    left: 850px;
}

@keyframes shake {
    0% {
        transform: rotate(2deg);
        transform-origin: 50% 0;
    }
    20% {
        transform: rotate(1deg);
        transform-origin: 50% 0;
    }
    40% {
        transform: rotate(0deg);
        transform-origin: 50% 0;
    }
    60% {
        transform: rotate(-2deg);
        transform-origin: 50% 0;
    }
    80% {
        transform: rotate(-10deg);
        transform-origin: 50% 0;
    }
    100% {
        transform: rotate(0deg);
        transform-origin: 50% 0;
    }
}

.shake {
    animation-name: shake;
    animation-iteration-count: infinite;
    animation-timing-function: ease-in-out;
    animation-duration: 2s;
}

.shake1 {
    animation-duration: 2.5s;
}

.shake2 {
    animation-duration: 3.5s;
}

.shake3 {
    animation-duration: 4.5s;
}

.shake4 {
    animation-duration: 5.5s;
}

.shake5 {
    animation-duration: 6.5s;
}

.shake6 {
    animation-duration: 7.5s;
}